Entanglement Entropy from a Holographic Viewpoint

Understand

The entanglement entropy has been historically studied by many authors in order to obtain quantum mechanical interpretations of the gravitational entropy.

• The discovery of AdS/CFT correspondence leads to the idea of holographic entanglement entropy, which is a clear solution to this important problem in gravity.
• In this article, we would like to give a quick survey of recent progresses on the holographic entanglement entropy.
• We focus on its gravitational aspects, so that it is comprehensible to those who are familiar with general relativity and basics of quantum field theory.